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total utility
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the total satisfaction a consumer derives from consumption; it could refer to either the totally utility of consuming a particular good or the total utility from all consumption.
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marginal utility
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the change in total utility derived from a one-unit change in consumption of a good.
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law of diminishing marginal utility
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the more of a good a person consumes per period, the smaller the increase in total utility from consuming one more unit (o.t.c)
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consumer equilibrium
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the condition in which an individual consumer's budget is spent and the last dollar spent on each good yields the same marginal utility; therefore utility is maximized.
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marginal valuation
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the dollar value of the marginal utility derived from consuming each additional unit of a good.
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consumer surplus
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the difference between the maximum amount that a consumer is willing to pay for a given quantity of a good and what the consumer actually pays.
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indifference curve
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shows all combinations of goods that provide the consumer with the same satisfaction, or the same utility (the consumer finds all combinations on a curve equally preferred)
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marginal rate of substitution
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the number of "A" you are willing to give up to get more of "B", neither gaining nor losing utility in the process.
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the law of diminishing rate of substitution
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States that as your consumption of A increases, the amount of "B" you are willing to give up to get another "A" declines.
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indifference map
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a graphical representation of a consumer's tastes. Each curve reflects a different level of utility.
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budget line
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depicts all possible combinations of videos and pizzas, given their prices and your budget.
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explicit cost
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opportunity cost of resources employed by a firm that takes the form of cash payments.
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implicit cost
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a firm's opportunity cost of using its own resources or those provided by its owners without a corresponding cash payment.
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accounting profit
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a firm's total revenue minus its explicit costs
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economic profit
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a firm's total revenue minus its explicit and implicit costs
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normal profit
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the accounting profit earned when all resources earn their opportunity cost.
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variable resources
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any resource that can be varied in the short run to increase or decrease production
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fixed resource
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any resource that cannot be varied in the short run.
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short run
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a period during which at least one of a firm's resources is fixed- about 3 months
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long run
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a period during which all resources under the firm's control are variable. - about 1 year
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total product
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the total output produced by a firm
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production function
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the relationship between the amount of resources employed and a firm's total product.
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marginal product
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the change in total product that occurs when the use of a particular resource increases by one unit, all other resources constant
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increasing marginal returns
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the marginal product of a variable resource increases as each additional unit of that resource is employed.
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law of diminishing marginal returns
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as more of a variable resource is added to a given amount of a fixed resource, marginal product eventually declines and could become negative.
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fixed cost
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any production cost that is independent of the firm's rate of output
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variable cost
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any production cost that changes as the rate of output changes.
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total cost
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the sum of fixed cost and variable cost or TC=FC+VC
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average variable cost
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variable cost divided by output or AVC= VC/q
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average total cost
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total cost divided by output, or ATC=TC/q; the sum of average fixed cost and average variable cost, or ATC=AFC+AVC
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long-run average cost curve
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a curve that indicates the lowest average cost of production at each rate of output when the size, or scale, of the firm varies; also called the planning curve.
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economies of scale
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forces that reduce a firm's average cost as the scale of operation increases in the long run.
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diseconomies of scale
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forces that may eventually increase a firm's average cost as the scale of operation increases in the long run.
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constant long-run average cost
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a cost that occurs when, over some range of output, long run average cost neither increases nor decreases with changes in firm size.
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production function
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identifies the maximum quantities of a particular good or service that can be produced per time period with various combinations of resources, for a given level of technology.
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isoquant curve
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a curve that shows all the technologically efficient combinations of two resources, such as labor and capital, that produce a certain rate of output.
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greater
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isoquants farther from the origin represent ________ output rates
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negative
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isoquants have ________ slopes because along a given isoquant, the quantity of labor employed inversely relates to the quantity of capital employed
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No
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do isoquants intersect?
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convex
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isoquants are usually _____________ to the origin
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marginal rate of technical substitution
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The rate at which labor substitutes for capital without affecting output.
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isocost line
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identifies all combinations of capital and labor the firm can hire for a given total cost.
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expansion path
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the line formed by connecting tangency points.
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market structure
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important features of a market, such as the number of firms, product uniformity across firms, firms' ease of entry and exist, and forms of competition.
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perfect competition
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a market structure with many fully informed buyers and sellers of a standardized product and no obstacles to entry or exit of firms in the long run.
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commodity
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a standardized product, a product that does not differ across producers, such as bushels of wheat or an ounce of gold.
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price taker
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a firm that faces a given market price and whose quantity supplied has no effect on that price; a perfectly competitive firm.
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marginal revenue
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the change in total revenue from selling an additional unit; in perfect competition, marginal revenue is also the market price.
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golden rule of profit maximization
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to maximize profit or minimize loss, a firm should produce the quantity at which marginal revenue equals marginal cost; this rule holds for all market structures.
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average revenue
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total revenue divided by output, or AR=TR/q; in all market structures, average revenue equals the market price.
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short-run firm supply curve
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a curve that shows the quantity a firm supplies at each price in the short run; in perfect competition, that portion of a firm's marginal cost curve that intersects and rises above the low point on its average variable cost curve.
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short-run industry supply curve
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a curve that indicates the quantity supplied by the industry at each price in the short run; in perfect competition, the horizontal sum of each firm's short-run supply curve.
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long-run industry supply curve
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a curve that shows the relationship between price and quantity supplied by the industry once firms adjust fully to any change in market demand.
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constant-cost industry
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an industry that can expand or contract without affecting the long run per-unit cost of production; the long-run industry supply curve is horizontal. Example: Pencil industry
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increasing-cost industry
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an industry that faces higher per-unit production costs as industry output expands in the long run; the long run industry supply curve slopes upward.
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producer efficiency
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the condition that exists when market output is produced using the least-cost combination of inputs; minimum average cost in the long run.
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allocative efficiency
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the condition that exists when firms produce output most preferred by consumers; marginal benefit equals marginal cost.
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producer surplus
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a bonus for producers in the short run; the amount by which total revenue from production exceeds variable costs.
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social welfare
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the overall well-being of people in the economy; maximized when the marginal cost of production equals the marginal benefit to consumers.
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barrier to entry
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any impediment that prevents new firms from entering an industry and competing on an equal basis with existing firms.
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patent
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a legal barrier to entry that grants its holder the exclusive right to sell a product for 20 years from the date the patent application is filed. [Pharmaceuticals]
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innovation
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the process of turning an innovation into a marketable product.
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price maker
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a firm that must find the profit maximizing price when the demand curve for its output slopes downward.
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deadweight loss of monopoly
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net loss to society when a firm uses its market power to restrict output and increase price.
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rent seeking
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activities undertaken by individuals or firms to influence public policy in a way that will increase their incomes.
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price discrimination
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increasing profit by charging different groups of consumers' different prices when the price differences are not justified by differences in costs.
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perfectly discriminating monopoly
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a monopolist who charges a different price for each unit sold; also called the monopolist's dream.
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monopolistic competition
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a market structure with many firms selling products that are substitutes but different enough that each firm's demand curve slopes downward; firm entry is relatively easy.
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Physical differences, location, services, product image
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Four basic ways how products differentiate themselves?
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excess capacity
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the difference between a firm's profit-maximizing quantity and the quantity that minimizes average cost.
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excludability
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the property of a good whereby a person can be prevented from using it.
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rivalry in consumption
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the property of a good whereby one person's use diminishes other people's use.
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private goods
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goods that are both excludable and rival in consumption.
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public goods
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goods that are neither excludable nor rival in consumption
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common resources
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goods that are rival in consumption but not excludable.
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Free rider
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a person who receives the benefit of a good but avoids paying for it. (Fireworks... they are not excludable)
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Excessive Capacity
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the difference between a firm's profit maximizing quantity and the quantity that maximizes average costs
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oligopoly
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a market structure characterized by a few firms whose behavior is interdependent (airlines)
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undifferentiated oligopoly
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an oligopoly that sells a commodity or product that does not differ across suppliers, such as an "ingot of steel" or "barrel of oil"
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differentiated oligopoly
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an oligopoly that sells a commodity or product, that differs across suppliers such as automobiles or breakfast cereal.
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collusion
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an agreement among firms to increase economic profit by dividing the market and/or fixing prices.
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cartel
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a group of firms that agrees to coordinate production and pricing decisions to act like a monopolist. -OPEC
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Price leader
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a firm whose price is adopted by other firms in the industry
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isocost line
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all combinations of capital and labor that a firm can hire for total given cost. They are parallel
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negative
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What is the slope of an isocost line?
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tangency between the isocost line and isoquant
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where is the minimum cost to produce a given output on an isocost line?
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connect the tangency points between the isoquants and isocost lines
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What does an expansion path do?
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perfectly competitive market
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in what market structure is the demand curve a horizontal line at the market price and perfectly elastic?
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find the quantity at which total revenue exceeds total cost by the most
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how can a firm maximize economic profit?
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economic profit
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if total revenue exceeds total cost, this ensues
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economic loss
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if total cost exceeds total revenue, this ensues
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consumer surplus
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in a ______ ______ consumers pay less than they are willing to pay
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producer surplus
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in a ______ _______ producers are willing to accept less than what they are receiving
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social welfare
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when marginal cost of production is equal to the marginal benefit to consume, what is maximized?
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barriers to entry
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Legal restrictions, patents and invention incentives, licenses, and economies of scale are examples of:
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downward
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economies of scale as represented by the downward sloping long run average cost curve have a _____slope
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Debeers
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what diamond company controls the diamond mining industry as a barrier to entry?
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China
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What country controls the essential resource of pandas?
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Alcoa
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What controls the supply of bauxite as a barrier of entry?
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Russia, Australia, Canada
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in the mid 1990s what three countries lost control of rough diamond supplies due to violating US antitrust laws by not negotiating with buyers and offering uncut diamonds at a set price?
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America
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in what country do consumers make more than a third of the world's retail purchases, but only make up 5% of the world population?
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where marginal revenue equals zero
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in a monopoly, where does the total revenue curve reach its maximum?
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where marginal cost equals marginal revenue
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when is profit maximized in a monopoly?
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downward
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a price discrimination market has a ______ slope
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allocative efficiency
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where does no deadweight loss occur?
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no
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are cartels legal in the US?
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game thoery
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what is an approach that analyzes oligopolistic behavior and is a series of strategic moves and countermoves by rival firms?
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no
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do indifference curves intersect?
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virtual reality
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what is AMC monopolizing on as less people are going to movies?
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disney
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what company wants to create its own VR industry?
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Boeing
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What company is possibly a "monopoly" for plane production, having data access and software access
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economies of scale
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the idea that a movie theater with only one screen still needs someone to sell tix, sell popcorn, and run the movie projecter, along with the fact that one worker could monitor two screens to be more efficient explains
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diseconomies of scale
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Movie times being staggered due to the limited quantity of parking represents
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Supersize Me
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What does Dr. Erhardt say "ruined" Mcdonalds?
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greater
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isoquants farther from the origin represent _____ output rates
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USPS
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who controls the mail monopoly as they are the only company with the ability to deliver first class mail?
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price makers
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firms leading in monopolistic competition are:
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low
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in monopolistic competition, barriers to entry are_____
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independently, interdependently
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firms in monopolistic competition can act _____ or ______
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mom and pop shops
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increasing wages can tilt the market in favor of highly capitalized chain stores and negatively affect:
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externality
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the uncompensated impact of one person's actions on the well-being of the bystander.
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internalizing the externality
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altering incentives so that people take account of the external effects of their actions.
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education
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what is an example of internalizing the externality
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corrective tax
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a tax designed to induce private decision makers to take account of the social costs that arise from a negative externality.
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larger
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negative externalities lead markets to produce a _______ quantity than is socially desirable
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EPA
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What government body has created public policy to regulate against externalities by regulating pollution?
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welfare system
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the government provides a small income for some poor families through:
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cost-benefit analysis
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the study that compares the costs and benefits to society of providing a public good.
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tragedy of the commons
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a parable that illustrates why common resources are used more than is desirable from the standpoint of society as a whole.